A client is to receive enoxaparin 30 mg subcutaneously. Available is enoxaparin 40 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

To calculate the mL of enoxaparin needed, divide the desired dose (30 mg) by the concentration (40 mg/mL): 30 mg / 40 mg/mL = 0.75 mL. Since the answer should be rounded to the nearest tenth, 0.75 rounds up to 0.8 mL. Therefore, the correct answer is 0.8 mL.

Choice A (0.5 mL) is incorrect as it is not the result of the calculation. Choices B, C, D, E, F, and G are also incorrect as they do not match the correct answer derived from the calculation.